<http://schema.org/description>
"Wind Cave National Park is a wonder of nature, with vast and beautiful caves that extend for miles on end. Covered by grasslands, what lurks beneath the surface is the true gem of this national park. Take this quiz and learn more about this American treasure."^^<http://www.w3.org/2001/XMLSchema#string>
<http://adventure.howstuffworks.com/wind-cave-national-park-quiz7.htm>